What is another word for un-reactive?
Pronunciation: [ˈʌnɹɪˈaktɪv] (IPA) 
"Un-reactive" is a word used to describe something or someone that does not react or respond quickly or in a dramatic way. Synonyms for this word include unresponsive, impassive, indifferent, apathetic, passive, stoic, or phlegmatic. An unresponsive person or object may behave sluggishly or fail to react to stimuli. An impassive individual is one who maintains an expressionless, calm demeanor, regardless of the situation. On the other hand, an indifferent person demonstrates a lack of interest or concern toward something, while a passive one acquiesces without any active response. Similarly, a stoic or phlegmatic person maintains a calm and composed demeanor, despite experiencing strong emotions or difficult situations.
